{"pageNumber":"2502","pageRowStart":"62525","pageSize":"25","recordCount":184689,"records":[{"id":1015173,"text":"1015173 - 2006 - Species richness and patterns of invasion in plants, birds, and fishes in the United States","interactions":[],"lastModifiedDate":"2016-09-27T10:46:58","indexId":"1015173","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1018,"text":"Biological Invasions","active":true,"publicationSubtype":{"id":10}},"title":"Species richness and patterns of invasion in plants, birds, and fishes in the United States","docAbstract":"<p><span>We quantified broad-scale patterns of species richness and species density (mean # species/km</span><sup>2</sup><span>) for native and non-indigenous plants, birds, and fishes in the continental USA and Hawaii. We hypothesized that the species density of native and non-indigenous taxa would generally decrease in northern latitudes and higher elevations following declines in potential evapotranspiration, mean temperature, and precipitation. County data on plants (</span><i class=\"EmphasisTypeItalic \">n</i><span> = 3004 counties) and birds (</span><i class=\"EmphasisTypeItalic \">n</i><span>=3074 counties), and drainage (6 HUC) data on fishes (</span><i class=\"EmphasisTypeItalic \">n</i><span> = 328 drainages) showed that the densities of native and non-indigenous species were strongly positively correlated for plant species (</span><i class=\"EmphasisTypeItalic \">r</i><span> = 0.86, </span><i class=\"EmphasisTypeItalic \">P</i><span> &lt; 0.0001), bird species (</span><i class=\"EmphasisTypeItalic \">r</i><span> = 0.93, </span><i class=\"EmphasisTypeItalic \">P</i><span>&lt;0.0001), and fish species (</span><i class=\"EmphasisTypeItalic \">r</i><span> = 0.41, </span><i class=\"EmphasisTypeItalic \">P</i><span>&lt;0.0001). Multiple regression models showed that the densities of native plant and bird species could be strongly predicted (adj. </span><i class=\"EmphasisTypeItalic \">R</i><sup>2</sup><span> = 0.66 in both models) at county levels, but fish species densities were less predictable at drainage levels (adj. </span><i class=\"EmphasisTypeItalic \">R</i><sup>2</sup><span> = 0.31,</span><i class=\"EmphasisTypeItalic \">P</i><span>&lt;0.0001). Similarly, non-indigenous plant and bird species densities were strongly predictable (adj. </span><i class=\"EmphasisTypeItalic \">R</i><sup>2</sup><span> = 0.84 and 0.91 respectively), but non-indigenous fish species density was less predictable (adj. </span><i class=\"EmphasisTypeItalic \">R</i><sup>2</sup><span> = 0.38). County level hotspots of native and non-indigenous plants, birds, and fishes were located in low elevation areas close to the coast with high precipitation and productivity (vegetation carbon). We show that (1) native species richness can be moderately well predicted with abiotic factors; (2) human populations have tended to settle in areas rich in native species; and (3) the richness and density of non-indigenous plant, bird, and fish species can be accurately predicted from biotic and abiotic factors largely because they are positively correlated to native species densities. We conclude that while humans facilitate the initial establishment, invasions of non-indigenous species, the spread and subsequent distributions of non-indigenous species may be controlled largely by environmental factors.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s10530-005-6422-0","usgsCitation":"Stohlgren, T.J., Barnett, D., Flather, C., Fuller, P.L., Peterjohn, B.G., Kartesz, J., and Master, L.L., 2006, Species richness and patterns of invasion in plants, birds, and fishes in the United States: Biological Invasions, v. 8, no. 3, p. 427-447, https://doi.org/10.1007/s10530-005-6422-0.","productDescription":"21 p.","startPage":"427","endPage":"447","numberOfPages":"21","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":133381,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db634fce","contributors":{"authors":[{"text":"Stohlgren, Thomas J. 0000-0001-9696-4450 stohlgrent@usgs.gov","orcid":"https://orcid.org/0000-0001-9696-4450","contributorId":2902,"corporation":false,"usgs":true,"family":"Stohlgren","given":"Thomas","email":"stohlgrent@usgs.gov","middleInitial":"J.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":322421,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barnett, David","contributorId":174944,"corporation":false,"usgs":false,"family":"Barnett","given":"David","affiliations":[],"preferred":false,"id":322424,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Flather, Curtis","contributorId":104779,"corporation":false,"usgs":true,"family":"Flather","given":"Curtis","affiliations":[],"preferred":false,"id":322427,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fuller, Pamela L. 0000-0002-9389-9144 pfuller@usgs.gov","orcid":"https://orcid.org/0000-0002-9389-9144","contributorId":3217,"corporation":false,"usgs":true,"family":"Fuller","given":"Pamela","email":"pfuller@usgs.gov","middleInitial":"L.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":false,"id":322422,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Peterjohn, Bruce G. bpeterjohn@usgs.gov","contributorId":4493,"corporation":false,"usgs":true,"family":"Peterjohn","given":"Bruce","email":"bpeterjohn@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":322425,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kartesz, John","contributorId":11132,"corporation":false,"usgs":true,"family":"Kartesz","given":"John","affiliations":[],"preferred":false,"id":322423,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Master, Lawrence L.","contributorId":174945,"corporation":false,"usgs":false,"family":"Master","given":"Lawrence","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":322426,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":1008350,"text":"1008350 - 2006 - A 21st century perspective on postfire seeding","interactions":[],"lastModifiedDate":"2018-01-23T10:52:52","indexId":"1008350","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2297,"text":"Journal of Forestry","onlineIssn":"1938-3746","printIssn":"0022-1201","active":true,"publicationSubtype":{"id":10}},"title":"A 21st century perspective on postfire seeding","docAbstract":"<p>Wildfires elicit a perceived need for emergency action to stabilize denuded landscapes. Aerial seeding of rapidly growing nonnative grasses is used routinely in an attempt to control postfire erosion, despite limited scientific basis for its effectiveness and with little consideration for its unintended ecological impacts. As fire size and magnitude have increased in recent decades, so has the prevalence and cost of postfire seeding and the potential footprint of its unintended impacts. We see a growing consensus in the research community on two important points: this management practice often is not cost-effective and it appears to create more problems than it solves.</p>","language":"English","publisher":"Oxford University Press","doi":"10.1093/jof/104.2.103","usgsCitation":"Keeley, J., Allen, C.D., Betancourt, J., Chong, G., Fotheringham, C.J., and Safford, H., 2006, A 21st century perspective on postfire seeding: Journal of Forestry, v. 104, no. 2, p. 103-104, https://doi.org/10.1093/jof/104.2.103.","productDescription":"2 p.","startPage":"103","endPage":"104","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true},{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":477562,"rank":3,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/jof/104.2.103","text":"Publisher Index Page"},{"id":132595,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":350506,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://academic.oup.com/jof/article/104/2/103/4598695"}],"volume":"104","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57c016abe4b0f2f0ceb872f2","contributors":{"authors":[{"text":"Keeley, Jon E. 0000-0002-4564-6521","orcid":"https://orcid.org/0000-0002-4564-6521","contributorId":69082,"corporation":false,"usgs":true,"family":"Keeley","given":"Jon E.","affiliations":[],"preferred":false,"id":317477,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Allen, Craig D. 0000-0002-8777-5989 craig_allen@usgs.gov","orcid":"https://orcid.org/0000-0002-8777-5989","contributorId":2597,"corporation":false,"usgs":true,"family":"Allen","given":"Craig","email":"craig_allen@usgs.gov","middleInitial":"D.","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":317473,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Betancourt, J.","contributorId":63768,"corporation":false,"usgs":true,"family":"Betancourt","given":"J.","affiliations":[],"preferred":false,"id":317476,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chong, G.W.","contributorId":54153,"corporation":false,"usgs":true,"family":"Chong","given":"G.W.","email":"","affiliations":[],"preferred":false,"id":317474,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fotheringham, C. J.","contributorId":63334,"corporation":false,"usgs":true,"family":"Fotheringham","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":317475,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Safford, H.D.","contributorId":22293,"corporation":false,"usgs":true,"family":"Safford","given":"H.D.","email":"","affiliations":[],"preferred":false,"id":317472,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70028370,"text":"70028370 - 2006 - Isolation and characterization of microsatellite loci in Alasmidonta heterodon (Bivalvia: Unionidae)","interactions":[],"lastModifiedDate":"2012-03-12T17:20:53","indexId":"70028370","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2775,"text":"Molecular Ecology Notes","onlineIssn":"1471-8286","printIssn":"1471-8278","active":true,"publicationSubtype":{"id":10}},"title":"Isolation and characterization of microsatellite loci in Alasmidonta heterodon (Bivalvia: Unionidae)","docAbstract":"We developed 13 species-specific microsatellite markers for the federally endangered Atlantic slope unionid Alasmidonta heterodon. Four to 18 alleles per locus were observed among 30 individuals. Observed heterozygosity throughout the loci ranged from 26.9 to 86.2% and averaged 63.6%. Estimates of individual pairwise genetic distances indicated that levels of genetic diversity among loci were sufficient to produce unique multilocus genotypes for all animals surveyed. Randomization tests showed that genotypes for this collection were consistent with Hardy-Weinberg expectations, and no significant linkage disequilibrium was observed between loci. These loci therefore appear suitable for population surveys, kinship assessment and other such applications. ?? 2006 Blackwell Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Molecular Ecology Notes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1471-8286.2005.01235.x","issn":"14718278","usgsCitation":"Shaw, K., King, T., Lellis, W., and Eackles, M., 2006, Isolation and characterization of microsatellite loci in Alasmidonta heterodon (Bivalvia: Unionidae): Molecular Ecology Notes, v. 6, no. 2, p. 365-367, https://doi.org/10.1111/j.1471-8286.2005.01235.x.","startPage":"365","endPage":"367","numberOfPages":"3","costCenters":[],"links":[{"id":210320,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1471-8286.2005.01235.x"},{"id":237206,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-03-17","publicationStatus":"PW","scienceBaseUri":"505a3f42e4b0c8380cd643bc","contributors":{"authors":[{"text":"Shaw, K.M.","contributorId":21754,"corporation":false,"usgs":true,"family":"Shaw","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":417770,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"King, T.L.","contributorId":93416,"corporation":false,"usgs":true,"family":"King","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":417773,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lellis, W.A.","contributorId":67441,"corporation":false,"usgs":true,"family":"Lellis","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":417771,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Eackles, M.S.","contributorId":79059,"corporation":false,"usgs":true,"family":"Eackles","given":"M.S.","affiliations":[],"preferred":false,"id":417772,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028371,"text":"70028371 - 2006 - Seasonal dynamics of microbial community composition and function in oak canopy and open grassland soils","interactions":[],"lastModifiedDate":"2012-03-12T17:20:53","indexId":"70028371","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2729,"text":"Microbial Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal dynamics of microbial community composition and function in oak canopy and open grassland soils","docAbstract":"Soil microbial communities are closely associated with aboveground plant communities, with multiple potential drivers of this relationship. Plants can affect available soil carbon, temperature, and water content, which each have the potential to affect microbial community composition and function. These same variables change seasonally, and thus plant control on microbial community composition may be modulated or overshadowed by annual climatic patterns. We examined microbial community composition, C cycling processes, and environmental data in California annual grassland soils from beneath oak canopies and in open grassland areas to distinguish factors controlling microbial community composition and function seasonally and in association with the two plant overstory communities. Every 3 months for up to 2 years, we monitored microbial community composition using phospholipid fatty acid (PLFA) analysis, microbial biomass, respiration rates, microbial enzyme activities, and the activity of microbial groups using isotope labeling of PLFA biomarkers (13C-PLFA) . Distinct microbial communities were associated with oak canopy soils and open grassland soils and microbial communities displayed seasonal patterns from year to year. The effects of plant species and seasonal climate on microbial community composition were similar in magnitude. In this Mediterranean ecosystem, plant control of microbial community composition was primarily due to effects on soil water content, whereas the changes in microbial community composition seasonally appeared to be due, in large part, to soil temperature. Available soil carbon was not a significant control on microbial community composition. Microbial community composition (PLFA) and 13C-PLFA ordination values were strongly related to intra-annual variability in soil enzyme activities and soil respiration, but microbial biomass was not. In this Mediterranean climate, soil microclimate appeared to be the master variable controlling microbial community composition and function. ?? 2006 Springer Science+Business Media, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Microbial Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00248-006-9100-6","issn":"00953628","usgsCitation":"Waldrop, M., and Firestone, M., 2006, Seasonal dynamics of microbial community composition and function in oak canopy and open grassland soils: Microbial Ecology, v. 52, no. 3, p. 470-479, https://doi.org/10.1007/s00248-006-9100-6.","startPage":"470","endPage":"479","numberOfPages":"10","costCenters":[],"links":[{"id":210321,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00248-006-9100-6"},{"id":237207,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"3","noUsgsAuthors":false,"publicationDate":"2006-08-15","publicationStatus":"PW","scienceBaseUri":"505b889be4b08c986b316a6c","contributors":{"authors":[{"text":"Waldrop, M. P. 0000-0003-1829-7140","orcid":"https://orcid.org/0000-0003-1829-7140","contributorId":105104,"corporation":false,"usgs":true,"family":"Waldrop","given":"M. P.","affiliations":[],"preferred":false,"id":417775,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Firestone, M.K.","contributorId":10593,"corporation":false,"usgs":true,"family":"Firestone","given":"M.K.","email":"","affiliations":[],"preferred":false,"id":417774,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70028372,"text":"70028372 - 2006 - Essential elements of online information networks on invasive alien species","interactions":[],"lastModifiedDate":"2022-01-19T19:03:04.689534","indexId":"70028372","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Essential elements of online information networks on invasive alien species","docAbstract":"In order to be effective, information must be placed in the proper context and organized in a manner that is logical and (preferably) standardized. Recently, invasive alien species (IAS) scientists have begun to create online networks to share their information concerning IAS prevention and control. At a special networking session at the Beijing International Symposium on Biological Invasions, an online Eastern Asia-North American IAS Information Network (EA-NA Network) was proposed. To prepare for the development of this network, and to provide models for other regional collaborations, we compare four examples of global, regional, and national online IAS information networks: the Global Invasive Species Information Network, the Invasives Information Network of the Inter-American Biodiversity Information Network, the Chinese Species Information System, and the Invasive Species Information Node of the US National Biological Information Infrastructure. We conclude that IAS networks require a common goal, dedicated leaders, effective communication, and broad endorsement, in order to obtain sustainable, long-term funding and long-term stability. They need to start small, use the experience of other networks, partner with others, and showcase benefits. Global integration and synergy among invasive species networks will succeed with contributions from both the top-down and the bottom-up. ?? 2006 Springer.","language":"English","publisher":"Springer","doi":"10.1007/s10530-005-5850-1","issn":"13873547","usgsCitation":"Simpson, A., Sellers, E.A., Grosse, A., and Xie, Y., 2006, Essential elements of online information networks on invasive alien species, v. 8, no. 7, p. 1579-1587, https://doi.org/10.1007/s10530-005-5850-1.","productDescription":"9 p.","startPage":"1579","endPage":"1587","costCenters":[{"id":37226,"text":"Core Science Analytics, Synthesis, and Libraries","active":true,"usgs":true}],"links":[{"id":237243,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0a5fe4b0c8380cd5231c","contributors":{"authors":[{"text":"Simpson, Annie 0000-0001-8338-5134 asimpson@usgs.gov","orcid":"https://orcid.org/0000-0001-8338-5134","contributorId":127,"corporation":false,"usgs":true,"family":"Simpson","given":"Annie","email":"asimpson@usgs.gov","affiliations":[{"id":208,"text":"Core Science Analytics and Synthesis","active":true,"usgs":true}],"preferred":true,"id":417776,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sellers, Elizabeth A. 0000-0003-4676-2994 esellers@usgs.gov","orcid":"https://orcid.org/0000-0003-4676-2994","contributorId":4704,"corporation":false,"usgs":true,"family":"Sellers","given":"Elizabeth","email":"esellers@usgs.gov","middleInitial":"A.","affiliations":[{"id":208,"text":"Core Science Analytics and Synthesis","active":true,"usgs":true}],"preferred":true,"id":417777,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grosse, Andrea","contributorId":191645,"corporation":false,"usgs":false,"family":"Grosse","given":"Andrea","email":"","affiliations":[],"preferred":false,"id":417778,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Xie, Y.","contributorId":107917,"corporation":false,"usgs":true,"family":"Xie","given":"Y.","email":"","affiliations":[],"preferred":false,"id":417779,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1016473,"text":"1016473 - 2006 - Phylogeography and spatial genetic structure of the southern torrent salamander: Implications for conservation and management","interactions":[],"lastModifiedDate":"2021-05-15T16:47:33.10936","indexId":"1016473","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2333,"text":"Journal of Heredity","active":true,"publicationSubtype":{"id":10}},"title":"Phylogeography and spatial genetic structure of the southern torrent salamander: Implications for conservation and management","docAbstract":"<p><span>The Southern torrent salamander (</span><i>Rhyacotriton variegatus</i><span>) was recently found not warranted for listing under the US Endangered Species Act due to lack of information regarding population fragmentation and gene flow. Found in small-order streams associated with late-successional coniferous forests of the US Pacific Northwest, threats to their persistence include disturbance related to timber harvest activities. We conducted a study of genetic diversity throughout this species' range to 1) identify major phylogenetic lineages and phylogeographic barriers and 2) elucidate regional patterns of population genetic and spatial phylogeographic structure. Cytochrome&nbsp;</span><i>b</i><span>&nbsp;sequence variation was examined for 189 individuals from 72 localities. We identified 3 major lineages corresponding to nonoverlapping geographic regions: a northern California clade, a central Oregon clade, and a northern Oregon clade. The Yaquina River may be a phylogeographic barrier between the northern Oregon and central Oregon clades, whereas the Smith River in northern California appears to correspond to the discontinuity between the central Oregon and northern California clades. Spatial analyses of genetic variation within regions encompassing major clades indicated that the extent of genetic structure is comparable among regions. We discuss our results in the context of conservation efforts for Southern torrent salamanders.</span></p>","language":"English","publisher":"Oxford Academic","doi":"10.1093/jhered/esl038","usgsCitation":"Miller, M.P., Haig, S.M., and Wagner, R., 2006, Phylogeography and spatial genetic structure of the southern torrent salamander: Implications for conservation and management: Journal of Heredity, v. 97, no. 6, p. 561-570, https://doi.org/10.1093/jhered/esl038.","productDescription":"10 p.","startPage":"561","endPage":"570","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":489987,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/jhered/esl038","text":"Publisher Index Page"},{"id":385656,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United  States","state":"Oregon, Washington","otherGeospatial":"Oregon and northern California coast","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -123.94775390625,\n              38.61687046392973\n            ],\n            [\n              -120.52001953124999,\n              38.61687046392973\n            ],\n            [\n              -120.52001953124999,\n              46.22545288226939\n            ],\n            [\n              -123.94775390625,\n              46.22545288226939\n            ],\n            [\n              -123.94775390625,\n              38.61687046392973\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"97","issue":"6","noUsgsAuthors":false,"publicationDate":"2006-11-29","publicationStatus":"PW","scienceBaseUri":"4f4e49e5e4b07f02db5e6cd2","contributors":{"authors":[{"text":"Miller, Mark P. 0000-0003-1045-1772 mpmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-1045-1772","contributorId":1967,"corporation":false,"usgs":true,"family":"Miller","given":"Mark","email":"mpmiller@usgs.gov","middleInitial":"P.","affiliations":[{"id":38131,"text":"WMA - Office of Planning and Programming","active":true,"usgs":true}],"preferred":true,"id":324278,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haig, Susan M. 0000-0002-6616-7589 susan_haig@usgs.gov","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":719,"corporation":false,"usgs":true,"family":"Haig","given":"Susan","email":"susan_haig@usgs.gov","middleInitial":"M.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":324277,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wagner, R.S.","contributorId":57427,"corporation":false,"usgs":true,"family":"Wagner","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":324279,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035312,"text":"70035312 - 2006 - The role of sandstone in the development of an Ozark karst system, south-central Missouri","interactions":[],"lastModifiedDate":"2012-03-12T17:21:54","indexId":"70035312","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"The role of sandstone in the development of an Ozark karst system, south-central Missouri","docAbstract":"Cave, spring, and sinkhole development in the Ozarks of south-central Missouri is placed in a geologic framework through detailed geologic mapping. Geologic mapping shows that initial dissolution and inception of cave development is concentrated just beneath sandstone beds within Upper Cambrian and Lower Ordovician dolostone. Although rocks of the Ozarks have systematic and pervasive vertical joints, the development of karst conduits is controlled by bedding planes and stratigraphic variability. In the Salem Plateau of south-central Missouri, sinkholes occur in the lower part of the Ordovician Roubidoux Formation, where sinkholes are rimmed with and contain sandstone that has collapsed into voids in the underlying Ordovician Gasconade Dolomite. Cave diving by the Ozark Cave Diving Alliance into Alley Spring, a large (average flow 3.7 m3/s) spring along the Jacks Fork in the Ozark National Scenic Riverways, shows that although the spring discharges from the middle part of the Gasconade, the source of water is a cave passage just beneath the Gunter Sandstone Member of the Gasconade Dolomite. Artesian conditions cause the upward movement of groundwater from cavernous dolostone beneath the sandstone aquitards to the large springs. We hypothesize that sandstone, which is largely impermeable due to silica cementation, acts as a confining unit where hydraulic pressure, combined with mixing of water of differing chemistry, increases dissolution in the underlying dolostone beds. ?? 2006 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2006.2404(04)","issn":"00721077","usgsCitation":"Orndorff, R.C., Weary, D., and Harrison, R., 2006, The role of sandstone in the development of an Ozark karst system, south-central Missouri: Special Paper of the Geological Society of America, no. 404, p. 31-38, https://doi.org/10.1130/2006.2404(04).","startPage":"31","endPage":"38","numberOfPages":"8","costCenters":[],"links":[{"id":215402,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2006.2404(04)"},{"id":243204,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"404","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baf95e4b08c986b3248d7","contributors":{"authors":[{"text":"Orndorff, R. C.","contributorId":17613,"corporation":false,"usgs":true,"family":"Orndorff","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":450140,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weary, D. J.","contributorId":40617,"corporation":false,"usgs":true,"family":"Weary","given":"D. J.","affiliations":[],"preferred":false,"id":450142,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harrison, R.W.","contributorId":32188,"corporation":false,"usgs":true,"family":"Harrison","given":"R.W.","affiliations":[],"preferred":false,"id":450141,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70029418,"text":"70029418 - 2006 - Leg 197 synthesis: Southward motion and geochemical variability of the Hawaiian hotspot","interactions":[],"lastModifiedDate":"2023-04-11T16:22:07.198742","indexId":"70029418","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5905,"text":"Proceedings of the Ocean Drilling Program: Scientific Results","active":true,"publicationSubtype":{"id":10}},"title":"Leg 197 synthesis: Southward motion and geochemical variability of the Hawaiian hotspot","docAbstract":"<p><span>The bend in the Hawaiian-Emperor volcanic chain is an often-cited example of a change in plate motion with respect to a stationary hotspot. Growing evidence, however, suggests that the bend might instead record variable drift of the Hawaiian hotspot within a convecting mantle. Paleomagnetic and radiometric age data from samples recovered during Ocean Drilling Program (ODP) Leg 197 define an age-progressive paleolatitude history, indicating that the Emperor Seamounts volcanic trend was formed principally by rapid (4–5 cm/yr) southward motion of the Hawaiian hotspot during Late Cretaceous to early Tertiary time (81–47 Ma). Paleointensity data derived from Leg 197 suggest an inverse relationship between field strength and reversal frequency, consistent with an active lower mantle that controls the efficiency of the geodynamo. Petrochemical data and observations of volcanic products (lava flows and volcaniclastic sediments) from Detroit, Nintoku, and Koko Seamounts provide records of the evolution of these volcanic systems for comparison with recent activity in the Hawaiian Islands. We find that the Emperor Seamounts formed from similar mantle sources for melting (plume components and lithosphere) and in much the same stages of volcanic activity and time span as the Hawaiian volcanoes. Changes in major and trace element and Sr isotopic compositions of shield lavas along the lineament can be related to variations in thickness of the lithosphere overlying the hotspot that control the depth and extent of partial melting. Other geochemical tracers, such as He, Pb, and Hf isotopic compositions, indicate persistent contributions to melting from the plume throughout the volcanic chain.</span></p>","language":"English","publisher":"Ocean Drilling Program, Texas A&M University","publisherLocation":"College Station, TX","doi":"10.2973/odp.proc.sr.197.001.2006","usgsCitation":"Duncan, R.A., Tarduno, J.A., and Scholl, D.W., 2006, Leg 197 synthesis: Southward motion and geochemical variability of the Hawaiian hotspot: Proceedings of the Ocean Drilling Program: Scientific Results, v. 197, 1, 39 p., https://doi.org/10.2973/odp.proc.sr.197.001.2006.","productDescription":"1, 39 p.","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":237633,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Emperor Seamount, Hawaiian hotspot","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              161.1904993308823,\n              54.05874705191934\n            ],\n            [\n              161.1904993308823,\n              32.30918906932945\n            ],\n            [\n              172.92272071520586,\n              32.30918906932945\n            ],\n            [\n              172.92272071520586,\n              54.05874705191934\n            ],\n            [\n              161.1904993308823,\n              54.05874705191934\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"197","publicComments":"Volume topic: <i>Motion of the Hawaiian Hotspot: A Paleomagnetic Test</i>","noUsgsAuthors":false,"publicationDate":"2006-06-23","publicationStatus":"PW","scienceBaseUri":"505a463ae4b0c8380cd675cf","contributors":{"editors":[{"text":"Duncan, Robert A.","contributorId":167399,"corporation":false,"usgs":false,"family":"Duncan","given":"Robert","email":"","middleInitial":"A.","affiliations":[{"id":6680,"text":"Oregon State University","active":true,"usgs":false}],"preferred":false,"id":730115,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Tarduno, John A.","contributorId":190389,"corporation":false,"usgs":false,"family":"Tarduno","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":730116,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Davies, Thomas A.","contributorId":48221,"corporation":false,"usgs":false,"family":"Davies","given":"Thomas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":730117,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Scholl, David W. 0000-0001-6500-6962 dscholl@usgs.gov","orcid":"https://orcid.org/0000-0001-6500-6962","contributorId":3738,"corporation":false,"usgs":true,"family":"Scholl","given":"David","email":"dscholl@usgs.gov","middleInitial":"W.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":true,"id":730118,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Duncan, Robert A.","contributorId":167399,"corporation":false,"usgs":false,"family":"Duncan","given":"Robert","email":"","middleInitial":"A.","affiliations":[{"id":6680,"text":"Oregon State University","active":true,"usgs":false}],"preferred":false,"id":422677,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tarduno, John A.","contributorId":190389,"corporation":false,"usgs":false,"family":"Tarduno","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":422676,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scholl, David W. 0000-0001-6500-6962 dscholl@usgs.gov","orcid":"https://orcid.org/0000-0001-6500-6962","contributorId":3738,"corporation":false,"usgs":true,"family":"Scholl","given":"David","email":"dscholl@usgs.gov","middleInitial":"W.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":true,"id":422678,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035639,"text":"70035639 - 2006 - U-Pb SHRIMP geochronology and trace-element geochemistry of coesite-bearing zircons, North-East Greenland Caledonides","interactions":[],"lastModifiedDate":"2012-03-12T17:21:51","indexId":"70035639","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"U-Pb SHRIMP geochronology and trace-element geochemistry of coesite-bearing zircons, North-East Greenland Caledonides","docAbstract":"Obtaining reliable estimates for the timing of eclogite-facies metamorphism is critical to establishing models for the formation and exhumation of high-pressure and ultrahigh-pressure (UHP) metamorphic terranes in collisional orogens. The presence of pressure-dependent phases, such as coesite, included in metamorphic zircon is generally regarded as evidence that zircon growth occurred at UHP conditions and, ifdated, should provide the necessary timing information. We report U-Pb sensitive high-resolution ion microprobe (SHRIMP) ages and trace-element SHRIMP data from coesite-bearing zircon suites formed during UHP metamorphism in the North- East Greenland Caledonides. Kyanite eclogite and quartzofeldspathic host gneiss samples from an island in J??kelbugt (78??00'N, 18??04'W) contained subspherical zircons with well-defined domains in cathodoluminescence (CL) images. The presence of coesite is confirmed by Raman spectroscopy in six zircons from four samples. Additional components of the eclogite-facies inclusion suite include kyanite, omphacite, garnet, and rutile. The trace-element signatures in core domains reflect modification of igneous protolith zircon. Rim signatures show flat heavy rare earth element (HREE) patterns that are characteristic of eclogite-facies zircon. The kyanite eclogites generally lack a Eu anomaly, whereas a negative Eu anomaly persists in all domains of the host gneiss. The <sup>207</sup>Pb- corrected <sup>206</sup>Pb/<sup>238</sup>U ages range from 330 to 390 Ma for the host gneiss and 330-370 Ma for the kyanite eclogite. Weighted mean <sup>206</sup>Pb/<sup>238</sup>U ages for coesite-bearing domains vary from 364 ?? 8 Ma for the host gneiss to 350 ?? 4 Ma for kyanite eclogite. The combined U-Pb and REE data interpreted in conjunction with observed CL domains and inclusion suites suggest that (1) Caledonian metamorphic zircon formed by both new zircon growth and recrystallization, (2) UHP metamorphism occurred near the end of the Caledonian collision, and (3) the 30-50m.y. span of ages records long residence times at eclogite-facies conditions for the UHProcks of North-East Greenland. This spread in observed ages is interpreted to be characteristic of metamorphic rocks that have experienced relatively long (longer than 10 m.y.) residence times at UHP conditions. ?? 2006 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2006.2403(02)","issn":"00721077","usgsCitation":"McClelland, W., Power, S., Gilotti, J.A., Mazdab, F., and Wopenka, B., 2006, U-Pb SHRIMP geochronology and trace-element geochemistry of coesite-bearing zircons, North-East Greenland Caledonides: Special Paper of the Geological Society of America, no. 403, p. 23-43, https://doi.org/10.1130/2006.2403(02).","startPage":"23","endPage":"43","numberOfPages":"21","costCenters":[],"links":[{"id":216273,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2006.2403(02)"},{"id":244136,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"403","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb9bee4b08c986b327d96","contributors":{"authors":[{"text":"McClelland, W.C.","contributorId":66929,"corporation":false,"usgs":true,"family":"McClelland","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":451594,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Power, S.E.","contributorId":82944,"corporation":false,"usgs":true,"family":"Power","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":451595,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gilotti, J. A.","contributorId":15776,"corporation":false,"usgs":true,"family":"Gilotti","given":"J.","middleInitial":"A.","affiliations":[],"preferred":false,"id":451592,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mazdab, F.K.","contributorId":11650,"corporation":false,"usgs":true,"family":"Mazdab","given":"F.K.","email":"","affiliations":[],"preferred":false,"id":451591,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wopenka, B.","contributorId":56064,"corporation":false,"usgs":true,"family":"Wopenka","given":"B.","email":"","affiliations":[],"preferred":false,"id":451593,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70028938,"text":"70028938 - 2006 - The fate of diamondoids in coals and sedimentary rocks","interactions":[],"lastModifiedDate":"2012-03-12T17:20:41","indexId":"70028938","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"The fate of diamondoids in coals and sedimentary rocks","docAbstract":"Diamondoids were detected in the extracts of a series of coals and rocks varying in maturity, lithology, source input, and depositional environment. At the same maturity level, diamondoids are generally about a magnitude more abundant in source rocks than in coals. The concentrations of diamondoids are maturity dependent. However, while diamondoids become more abundant with the increasing thermal maturity, a diminution in diamondoid concentrations is observed at the maturity value of about Ro = 4.0% in both coals and rocks. The occurrence of diamantane destruction at 550 ??C during pyrolysis suggests that diamondoids may be eventually destroyed at high temperatures in the Earth. Here we propose three main phases of diamondoid life in nature: diamondoid generation (phase I, Ro < 1.1%), diamondoid generation and enrichment (phase II, 1.1% ??? Ro ??? 4.0%), and diamondoid destruction (phase III, Ro > 4.0%). ?? 2006 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/G22840A.1","issn":"00917613","usgsCitation":"Wei, Z., Moldowan, J., Jarvie, D., and Hill, R., 2006, The fate of diamondoids in coals and sedimentary rocks: Geology, v. 34, no. 12, p. 1013-1016, https://doi.org/10.1130/G22840A.1.","startPage":"1013","endPage":"1016","numberOfPages":"4","costCenters":[],"links":[{"id":209963,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G22840A.1"},{"id":236732,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505babf6e4b08c986b3231a9","contributors":{"authors":[{"text":"Wei, Z.","contributorId":12675,"corporation":false,"usgs":true,"family":"Wei","given":"Z.","email":"","affiliations":[],"preferred":false,"id":420634,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moldowan, J.M.","contributorId":78527,"corporation":false,"usgs":true,"family":"Moldowan","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":420636,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jarvie, D.M.","contributorId":69768,"corporation":false,"usgs":true,"family":"Jarvie","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":420635,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hill, R.","contributorId":88936,"corporation":false,"usgs":true,"family":"Hill","given":"R.","affiliations":[],"preferred":false,"id":420637,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028939,"text":"70028939 - 2006 - Channel formation by flow stripping: large-scale scour features along the Monterey East Channel and their relation to sediment waves","interactions":[],"lastModifiedDate":"2014-10-24T11:27:53","indexId":"70028939","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3369,"text":"Sedimentology","active":true,"publicationSubtype":{"id":10}},"title":"Channel formation by flow stripping: large-scale scour features along the Monterey East Channel and their relation to sediment waves","docAbstract":"The Monterey East system is formed by large-scale sediment waves deposited as a result of flows stripped from the deeply incised Monterey fan valley (Monterey Channel) at the apex of the Shepard Meander. The system is dissected by a linear series of steps that take the form of scour-shaped depressions ranging from 3·5 to 4·5 km in width, 3 to 6 km in length and from 80 to 200 m in depth. These giant scours are aligned downstream from a breech in the levee on the southern side of the Shepard Meander. The floor of the breech is only 150 m above the floor of the Monterey fan valley but more than 100 m below the levee crests resulting in significant flow stripping. Numerical modeling suggests that the steps in the Monterey East system were created by Froude-supercritical turbidity currents stripped from the main flow in the Monterey channel itself. Froude-supercritical flow over an erodible bed can be subject to an instability that gives rise to the formation of cyclic steps, i.e. trains of upstream-migrating steps bounded upstream and downstream by hydraulic jumps in the flow above them. The flow that creates these steps may be net-erosional or net-depositional. In the former case it gives rise to trains of scours such as those in the Monterey East system, and in the latter case it gives rise to the familiar trains of upstream-migrating sediment waves commonly seen on submarine levees. The Monterey East system provides a unique opportunity to introduce the concept of cyclic steps in the submarine environment to study processes that might result in channel initiation on modern submarine fans.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sedimentology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1111/j.1365-3091.2006.00812.x","issn":"00370746","usgsCitation":"Fildani, A., Normark, W.R., Kostic, S., and Parker, G., 2006, Channel formation by flow stripping: large-scale scour features along the Monterey East Channel and their relation to sediment waves: Sedimentology, v. 53, no. 6, p. 1265-1287, https://doi.org/10.1111/j.1365-3091.2006.00812.x.","productDescription":"23 p.","startPage":"1265","endPage":"1287","numberOfPages":"23","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":209983,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-3091.2006.00812.x"},{"id":236763,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Monterey Bay","volume":"53","issue":"6","noUsgsAuthors":false,"publicationDate":"2006-08-11","publicationStatus":"PW","scienceBaseUri":"5059f453e4b0c8380cd4bc84","contributors":{"authors":[{"text":"Fildani, A.","contributorId":34699,"corporation":false,"usgs":true,"family":"Fildani","given":"A.","affiliations":[],"preferred":false,"id":420639,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Normark, W. R.","contributorId":87137,"corporation":false,"usgs":true,"family":"Normark","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":420640,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kostic, S.","contributorId":98524,"corporation":false,"usgs":true,"family":"Kostic","given":"S.","email":"","affiliations":[],"preferred":false,"id":420641,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Parker, G.","contributorId":31112,"corporation":false,"usgs":true,"family":"Parker","given":"G.","affiliations":[],"preferred":false,"id":420638,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035497,"text":"70035497 - 2006 - Application of carbonate cyclostratigraphy and borehole geophysics to delineate porosity and preferential flow in the karst limestone of the Biscayne aquifer, SE Florida","interactions":[],"lastModifiedDate":"2020-03-27T06:47:37","indexId":"70035497","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Application of carbonate cyclostratigraphy and borehole geophysics to delineate porosity and preferential flow in the karst limestone of the Biscayne aquifer, SE Florida","docAbstract":"Combined analyses of cores, borehole geophysical logs, and cyclostratigraphy produced a new conceptual hydrogeologic framework for the triple-porosity (matrix, touching-vug, and conduit porosity) karst limestone of the Biscayne aquifer in a 0.65 km<sup>2</sup> study area, SE Florida. Vertical lithofacies successions, which have recurrent stacking patterns, fit within high-frequency cycles. We define three ideal high-frequency cycles as: (1) upward-shallowing subtidal cycles, (2) upward-shallowing paralic cycles, and (3) aggradational subtidal cycles. Digital optical borehole images, tracers, and flow meters indicate that there is a predictable vertical pattern of porosity and permeability within the three ideal cycles, because the distribution of porosity and permeability is related to lithofacies. Stratiform zones of high permeability commonly occur just above flooding surfaces in the lower part of upward-shallowing subtidal and paralic cycles, forming preferential groundwater flow zones. Aggradational subtidal cycles are either mostly high-permeability zones or leaky, low-permeability units. In the study area, groundwater flow within stratiform high-permeability zones is through a secondary pore system of touching-vug porosity principally related to molds of burrows and pelecypods and to interburrow vugs. Movement of a dye-tracer pulse observed using a borehole fluid-temperature tool during a conservative tracer test indicates heterogeneous permeability. Advective movement of the tracer appears to be most concentrated within a thin stratiform flow zone contained within the lower part of a high-frequency cycle, indicating a distinctly high relative permeability for this zone. Borehole flow-meter measurements corroborate the relatively high permeability of the flow zone. Identification and mapping of such high-permeability flow zones is crucial to conceptualization of karst groundwater flow within a cyclostratigraphic framework. Many karst aquifers are included in cyclic platform carbonates. Clearly, a cyclostratigraphic approach that translates carbonate aquifer heterogeneity into a consistent framework of correlative units will improve simulation of karst groundwater flow. ?? 2006 Geological Society of America.","language":"English","publisher":"Geological Society of America","doi":"10.1130/2006.2404(16)","issn":"00721077","usgsCitation":"Cunningham, K.J., Renken, R.A., Wacker, M.A., Zygnerski, M., Robinson, E., Shapiro, A.M., and Wingard, G.L., 2006, Application of carbonate cyclostratigraphy and borehole geophysics to delineate porosity and preferential flow in the karst limestone of the Biscayne aquifer, SE Florida: Special Paper of the Geological Society of America, no. 404, p. 191-208, https://doi.org/10.1130/2006.2404(16).","productDescription":"18 p.","startPage":"191","endPage":"208","numberOfPages":"18","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":244062,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Southern Florida","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -82.529296875,\n              24.84656534821976\n            ],\n            [\n              -79.8046875,\n              24.84656534821976\n            ],\n            [\n              -79.8046875,\n              27.254629577800063\n            ],\n            [\n              -82.529296875,\n              27.254629577800063\n            ],\n            [\n              -82.529296875,\n              24.84656534821976\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","issue":"404","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ec98e4b0c8380cd49380","contributors":{"authors":[{"text":"Cunningham, Kevin J. 0000-0002-2179-8686 kcunning@usgs.gov","orcid":"https://orcid.org/0000-0002-2179-8686","contributorId":1689,"corporation":false,"usgs":true,"family":"Cunningham","given":"Kevin","email":"kcunning@usgs.gov","middleInitial":"J.","affiliations":[{"id":269,"text":"FLWSC-Ft. Lauderdale","active":true,"usgs":true}],"preferred":true,"id":450932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Renken, Robert A. rarenken@usgs.gov","contributorId":269,"corporation":false,"usgs":true,"family":"Renken","given":"Robert","email":"rarenken@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":450938,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wacker, Michael A. mwacker@usgs.gov","contributorId":2162,"corporation":false,"usgs":true,"family":"Wacker","given":"Michael","email":"mwacker@usgs.gov","middleInitial":"A.","affiliations":[{"id":269,"text":"FLWSC-Ft. Lauderdale","active":true,"usgs":true}],"preferred":true,"id":450937,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zygnerski, M.R.","contributorId":45109,"corporation":false,"usgs":true,"family":"Zygnerski","given":"M.R.","affiliations":[],"preferred":false,"id":450933,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Robinson, E.","contributorId":73847,"corporation":false,"usgs":true,"family":"Robinson","given":"E.","email":"","affiliations":[],"preferred":false,"id":450934,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Shapiro, Allen M. 0000-0002-6425-9607 ashapiro@usgs.gov","orcid":"https://orcid.org/0000-0002-6425-9607","contributorId":2164,"corporation":false,"usgs":true,"family":"Shapiro","given":"Allen","email":"ashapiro@usgs.gov","middleInitial":"M.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":450936,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wingard, G. Lynn 0000-0002-3833-5207 lwingard@usgs.gov","orcid":"https://orcid.org/0000-0002-3833-5207","contributorId":605,"corporation":false,"usgs":true,"family":"Wingard","given":"G.","email":"lwingard@usgs.gov","middleInitial":"Lynn","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":450935,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70035469,"text":"70035469 - 2006 - Modeling canopy turbulent flow over complex terrain","interactions":[],"lastModifiedDate":"2012-03-12T17:21:56","indexId":"70035469","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Modeling canopy turbulent flow over complex terrain","docAbstract":"[No abstract available]","largerWorkTitle":"17th Symposium on Boundary Layers and Turbulence, 27th Conference on Agricultural and Forest Meteorology, 17th Conference on Biometeorology and Aerobiology","conferenceTitle":"17th Symposium on Boundary Layers and Turbulence, 27th Conference on Agricultural and Forest Meteorology, 17th Conference on Biometeorology and Aerobiology","conferenceDate":"22 May 2006 through 25 May 2006","conferenceLocation":"San Diego, CA","language":"English","usgsCitation":"Yi, C., Monson, R.K., Zhai, Z., Anderson, D., Turnipseed, A., Burns, S.P., and Lamb, B., 2006, Modeling canopy turbulent flow over complex terrain, <i>in</i> 17th Symposium on Boundary Layers and Turbulence, 27th Conference on Agricultural and Forest Meteorology, 17th Conference on Biometeorology and Aerobiology, San Diego, CA, 22 May 2006 through 25 May 2006.","numberOfPages":"8","costCenters":[],"links":[{"id":242944,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5be4e4b0c8380cd6f89c","contributors":{"authors":[{"text":"Yi, C.","contributorId":62039,"corporation":false,"usgs":true,"family":"Yi","given":"C.","email":"","affiliations":[],"preferred":false,"id":450811,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Monson, Russell K.","contributorId":48136,"corporation":false,"usgs":true,"family":"Monson","given":"Russell","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":450810,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhai, Z.","contributorId":24189,"corporation":false,"usgs":true,"family":"Zhai","given":"Z.","email":"","affiliations":[],"preferred":false,"id":450808,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anderson, D.E.","contributorId":47320,"corporation":false,"usgs":true,"family":"Anderson","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":450809,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Turnipseed, A.A.","contributorId":23726,"corporation":false,"usgs":true,"family":"Turnipseed","given":"A.A.","email":"","affiliations":[],"preferred":false,"id":450807,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Burns, Sean P.","contributorId":98921,"corporation":false,"usgs":true,"family":"Burns","given":"Sean","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":450812,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lamb, B.","contributorId":17058,"corporation":false,"usgs":true,"family":"Lamb","given":"B.","affiliations":[],"preferred":false,"id":450806,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70179487,"text":"70179487 - 2006 - Distribution of Tui Chub in Cow Head Lake watershed system, Nevada and California","interactions":[],"lastModifiedDate":"2017-01-03T15:45:42","indexId":"70179487","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5250,"text":"California Department of Fish and Game","active":true,"publicationSubtype":{"id":2}},"title":"Distribution of Tui Chub in Cow Head Lake watershed system, Nevada and California","docAbstract":"<p>n/a</p>","language":"English","publisher":"California Department of Fish and Game","usgsCitation":"Scoppettone, G., and Rissler, P., 2006, Distribution of Tui Chub in Cow Head Lake watershed system, Nevada and California: California Department of Fish and Game, v. 92, 7 p. .","productDescription":"7 p. ","startPage":"106","endPage":"112","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":332801,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Nevada","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -124.27734374999999,\n              41.983994270935625\n            ],\n            [\n              -114.08203125,\n              42.032974332441405\n            ],\n            [\n              -114.10400390625,\n              36.10237644873644\n            ],\n            [\n              -114.1644287109375,\n              36.03133177633187\n            ],\n            [\n              -114.29077148437499,\n             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P.H.","contributorId":47539,"corporation":false,"usgs":true,"family":"Rissler","given":"P.H.","affiliations":[],"preferred":false,"id":657442,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1016487,"text":"1016487 - 2006 - Effects of radio marking on prairie falcons: Attachment failures provide insights about survival","interactions":[],"lastModifiedDate":"2012-03-02T17:16:05","indexId":"1016487","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3779,"text":"Wildlife Society Bulletin","onlineIssn":"1938-5463","printIssn":"0091-7648","active":true,"publicationSubtype":{"id":10}},"title":"Effects of radio marking on prairie falcons: Attachment failures provide insights about survival","docAbstract":"From 1999-2002, we attached satellite-received platform transmitter terminals (PTTs) to 40 adult female prairie falcons (Falco mexicanus) on their nesting grounds in the Snake River Birds of Prey National Conservation Area (NCA) in southwest Idaho. We used 3 variations of a backpack harness design that had been used previously on raptors. Each radiomarked falcon also received a color leg band with a unique alphanumeric code. We monitored survival of birds using radiotelemetry and searched for marked birds on their nesting grounds during breeding seasons after marking. Because 6 falcons removed their harnesses during the first year, we were able to compare survival rates of birds that shed PTTs with those that retained them. We describe a harness design that failed prematurely as well as designs that proved successful for long-term PTT attachment. We resighted 21 marked individuals on nesting areas 1-5 years after they were radiomarked and documented 13 mortalities of satellite-tracked falcons. We used a Cormack-Jolly-Seber model to estimate apparent survival probability based on band resighting and telemetry data. Platform transmitter terminals had no short-term effects on falcons or their nesting success during the nesting season they were marked, but birds that shed their transmitters increased their probability of survival. Estimated annual survival for birds that shed their transmitters was 87% compared to 49% for birds wearing transmitters. We discuss possible reasons for differences in apparent survival rates and offer recommendations for future marking of falcons.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wildlife Society Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"U.S. Fish and Wildlife Service","usgsCitation":"Steenhof, K., Bates, K.K., Fuller, M.R., Kochert, M.N., McKinley, J., and Lukacs, P.M., 2006, Effects of radio marking on prairie falcons: Attachment failures provide insights about survival: Wildlife Society Bulletin, v. 34, no. 1, p. 116-126.","productDescription":"p. 116-126","startPage":"116","endPage":"126","numberOfPages":"11","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134241,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db611a80","contributors":{"authors":[{"text":"Steenhof, Karen karen_steenhof@usgs.gov","contributorId":30585,"corporation":false,"usgs":true,"family":"Steenhof","given":"Karen","email":"karen_steenhof@usgs.gov","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":324302,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bates, Kirk K.","contributorId":43723,"corporation":false,"usgs":true,"family":"Bates","given":"Kirk","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":324303,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fuller, Mark R. 0000-0001-7459-1729 mark_fuller@usgs.gov","orcid":"https://orcid.org/0000-0001-7459-1729","contributorId":2296,"corporation":false,"usgs":true,"family":"Fuller","given":"Mark","email":"mark_fuller@usgs.gov","middleInitial":"R.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":324300,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kochert, Michael N. 0000-0002-4380-3298 mkochert@usgs.gov","orcid":"https://orcid.org/0000-0002-4380-3298","contributorId":3037,"corporation":false,"usgs":true,"family":"Kochert","given":"Michael","email":"mkochert@usgs.gov","middleInitial":"N.","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":324301,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McKinley, J.O.","contributorId":62182,"corporation":false,"usgs":true,"family":"McKinley","given":"J.O.","email":"","affiliations":[],"preferred":false,"id":324304,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lukacs, Paul M.","contributorId":101240,"corporation":false,"usgs":true,"family":"Lukacs","given":"Paul","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":324305,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":1016400,"text":"1016400 - 2006 - Size dimorphism, molt status, and body mass variation of prairie falcons nesting in the Snake River Birds of Prey National Conservation Area","interactions":[],"lastModifiedDate":"2018-07-31T13:40:43","indexId":"1016400","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2442,"text":"Journal of Raptor Research","active":true,"publicationSubtype":{"id":10}},"title":"Size dimorphism, molt status, and body mass variation of prairie falcons nesting in the Snake River Birds of Prey National Conservation Area","docAbstract":"Thirty-nine bald eagles found sick or dead in 13 States during 1969 and 1970 were analyzed for pesticide residues. Residues of DDE, dieldrin, polychlorinated biphenyls (PCB's), and mercury were detected in all bald eagle carcasses; DDD residues were detected in 38; DDT, heptachlor epoxide, and dichlorobenzophenone (DCBP) were detected less frequently. Six eagles contained possible lethal levels of dieldrin in the brain, and one contained a lethal concentration of DDE (385 ppm) in the brain together with 235 ppm of PCB's. Autopsy revealed that 18 bald eagles were illegally shot; other causes of death were impact injuries, electrocution, emaciation, and infectious diseases.","language":"English","publisher":"BioOne","doi":"10.3356/0892-1016(2006)40[71:SDMSAB]2.0.CO;2","usgsCitation":"Steenhof, K., and McKinley, J.O., 2006, Size dimorphism, molt status, and body mass variation of prairie falcons nesting in the Snake River Birds of Prey National Conservation Area: Journal of Raptor Research, v. 40, no. 1, p. 71-75, https://doi.org/10.3356/0892-1016(2006)40[71:SDMSAB]2.0.CO;2.","productDescription":"5 p.","startPage":"71","endPage":"75","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":477573,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3356/0892-1016(2006)40[71:sdmsab]2.0.co;2","text":"Publisher Index Page"},{"id":133149,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f3e4b07f02db5ef394","contributors":{"authors":[{"text":"Steenhof, Karen karen_steenhof@usgs.gov","contributorId":30585,"corporation":false,"usgs":true,"family":"Steenhof","given":"Karen","email":"karen_steenhof@usgs.gov","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":324202,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKinley, James O.","contributorId":176823,"corporation":false,"usgs":false,"family":"McKinley","given":"James","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":324203,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1016431,"text":"1016431 - 2006 - Populations and habitat relationships of Piute ground squirrels in southwest Idaho","interactions":[],"lastModifiedDate":"2012-02-02T00:04:51","indexId":"1016431","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3746,"text":"Western North American Naturalist","onlineIssn":"1944-8341","printIssn":"1527-0904","active":true,"publicationSubtype":{"id":10}},"title":"Populations and habitat relationships of Piute ground squirrels in southwest Idaho","docAbstract":"Piute ground squirrels (Spermophilus mollis idahoensis) are normally above ground from late January until late June or early July in the Snake River Birds of Prey National Conservation Area in southwestern Idaho. In 2002 they were rarely seen above ground after early May. Because of the ecological importance of ground squirrels for nesting raptors and other species, we sought to determine the reasons for their early disappearance. We sampled 12 sites from January 2003 through March 2003 to determine if a population crash had occurred in 2002. Tests indicated that Piute ground squirrels had not been exposed to plague within the past year. The presence of yearlings in the population indicated that squirrels reproduced in 2002 and that at least some yearlings survived the winter. Both yearling and adult squirrels appeared to be reproducing at or above normal rates in 2003. The most plausible explanation for the early disappearance of Piute ground squirrels in 2002 is that squirrels entered seasonal torpor early in response to a late spring drought. In addition, the breeding chronology of squirrels may have shifted during the past 2 decades in response to climate change and/or habitat alteration. Shrub habitats provide a more favorable and stable environment for squirrels than grass habitats. Squirrel abundance was higher on live-trapping grids with sagebrush than on grids dominated by grass, and squirrel masses were higher at sites dominated by shrubs and Sandberg bluegrass (Poa secunda). Densities in big sagebrush (Artemisia tridentata) were within the ranges reported for earlier years, but densities in grass were lower than previously reported. Low densities at grassland sites in 2003 support other findings that drought affects squirrels in altered grass communities more than those in native shrub habitats. Long-term shifts in ground squirrel breeding chronology may have implications for raptors that depend on them for food.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Western North American Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Steenhof, K., Yensen, E., Kochert, M.N., and Gage, K., 2006, Populations and habitat relationships of Piute ground squirrels in southwest Idaho: Western North American Naturalist, v. 66, no. 4, p. 482-491.","productDescription":"p. 482-491","startPage":"482","endPage":"491","numberOfPages":"6","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134162,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"66","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad6e4b07f02db683d85","contributors":{"authors":[{"text":"Steenhof, Karen karen_steenhof@usgs.gov","contributorId":30585,"corporation":false,"usgs":true,"family":"Steenhof","given":"Karen","email":"karen_steenhof@usgs.gov","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":324237,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yensen, Eric","contributorId":58611,"corporation":false,"usgs":true,"family":"Yensen","given":"Eric","email":"","affiliations":[],"preferred":false,"id":324238,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kochert, Michael N. 0000-0002-4380-3298 mkochert@usgs.gov","orcid":"https://orcid.org/0000-0002-4380-3298","contributorId":3037,"corporation":false,"usgs":true,"family":"Kochert","given":"Michael","email":"mkochert@usgs.gov","middleInitial":"N.","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":324236,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gage, K.","contributorId":83884,"corporation":false,"usgs":true,"family":"Gage","given":"K.","email":"","affiliations":[],"preferred":false,"id":324239,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1016484,"text":"1016484 - 2006 - Landscape context mediates influence of local food abundance on wetland use by wintering shorebirds in an agricultural valley","interactions":[],"lastModifiedDate":"2012-02-02T00:04:50","indexId":"1016484","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1015,"text":"Biological Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Landscape context mediates influence of local food abundance on wetland use by wintering shorebirds in an agricultural valley","docAbstract":"While it is widely understood that local abundance of benthic invertebrates can greatly influence the distribution and abundance of wetland birds, no studies have examined if wetland landscape context can mediate this relationship. We studied the influence of wetland food abundance and landscape context on use of agricultural wetlands by wintering dunlin (Calidris alpina) and killdeer (Charadrius vociferus) in the Willamette Valley of Oregon, USA, over two winters (1999a??2000, 2000a??2001) of differing rainfall and subsequent habitat distribution. We monitored bird use (frequency of occurrence and abundance) at a sample of wetlands differing in local food abundance (density and biomass) and landscape context [adjacent shorebird habitat (defined as ha of wet habitat with less than 50% vegetative cover and within a 2-km radius) and nearest neighbor distance]. We evaluated predictive models for bird use using linear regression and the Cp criterion to select the most parsimonious model. During the dry winter (2000a??2001), dunlin exhibited greater use of sites with higher invertebrate density and biomass but also with more adjacent shorebird habitat and closest to a wetland neighbor. However, neither landscape context nor food abundance were important predictors of dunlin use during the wet winter (1999a??2000). Use of sites by killdeer was unrelated to either local food abundance or landscape context measures during both winters. Our findings contribute to a growing recognition of the importance of landscape structure to wetland birds and highlight a number of implications for the spatial planning and enhancement of wetlands using a landscape approach.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biological Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"U.S. Fish and Wildlife Service","usgsCitation":"Taft, O.W., and Haig, S.M., 2006, Landscape context mediates influence of local food abundance on wetland use by wintering shorebirds in an agricultural valley: Biological Conservation, v. 128, no. 3, p. 298-307.","productDescription":"p. 298-307","startPage":"298","endPage":"307","numberOfPages":"10","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134302,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"128","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b20e4b07f02db6abaa2","contributors":{"authors":[{"text":"Taft, Oriane W.","contributorId":34883,"corporation":false,"usgs":true,"family":"Taft","given":"Oriane","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":324294,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haig, Susan M. 0000-0002-6616-7589 susan_haig@usgs.gov","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":719,"corporation":false,"usgs":true,"family":"Haig","given":"Susan","email":"susan_haig@usgs.gov","middleInitial":"M.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":324293,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1016485,"text":"1016485 - 2006 - Sex determination of Pohnpei Micronesian kingfishers using morphological and molecular genetic techniques","interactions":[],"lastModifiedDate":"2012-02-02T00:04:51","indexId":"1016485","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Sex determination of Pohnpei Micronesian kingfishers using morphological and molecular genetic techniques","docAbstract":"Conservation-oriented studies of Micronesian Kingfishers (Todiramphus cinnamominus) have been hindered by a lack of basic natural history information, despite the status of the Guam subspecies (T. c. cinnamominus) as one of the most endangered species in the world. We used tissue samples and morphometric measures from museum specimens and wild-captured Pohnpei Micronesian Kingfishers (T. c. reichenbachii) to develop methods for sex determination. We present a modified molecular protocol and a discriminant function that yields the probability that a particular individual is male or female. Our results revealed that females were significantly larger than males, and the discriminant function correctly predicted sex in 73% (30/41) of the individuals. The sex of 86% (18/21) of individuals was correctly assigned when a moderate reliability threshold was set. Sex determination using molecular genetic techniques was more reliable than methods based on morphology. Our results will facilitate recovery efforts for the critically endangered Guam Micronesian Kingfisher and provide a basis for sex determination in the 11 other endangered congeners in the Pacific Basin.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Field Ornithology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Kesler, D.C., Lopes, I., and Haig, S.M., 2006, Sex determination of Pohnpei Micronesian kingfishers using morphological and molecular genetic techniques: Journal of Field Ornithology, v. 77, no. 2, p. 229-232.","productDescription":"p. 229-232","startPage":"229","endPage":"232","numberOfPages":"4","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134234,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"77","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f4ad6","contributors":{"authors":[{"text":"Kesler, Dylan C.","contributorId":14358,"corporation":false,"usgs":false,"family":"Kesler","given":"Dylan","email":"","middleInitial":"C.","affiliations":[{"id":6769,"text":"University of Missouri, Columbia, MO","active":true,"usgs":false}],"preferred":false,"id":324296,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lopes, I.F.","contributorId":85558,"corporation":false,"usgs":true,"family":"Lopes","given":"I.F.","email":"","affiliations":[],"preferred":false,"id":324297,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haig, Susan M. 0000-0002-6616-7589 susan_haig@usgs.gov","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":719,"corporation":false,"usgs":true,"family":"Haig","given":"Susan","email":"susan_haig@usgs.gov","middleInitial":"M.","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":324295,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1016435,"text":"1016435 - 2006 - Are migrating raptors guided by a geomagnetic compass?","interactions":[],"lastModifiedDate":"2012-02-02T00:04:50","indexId":"1016435","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":770,"text":"Animal Behaviour","active":true,"publicationSubtype":{"id":10}},"title":"Are migrating raptors guided by a geomagnetic compass?","docAbstract":"We tested whether routes of raptors migrating over areas with homogeneous topography follow constant geomagnetic courses more or less closely than constant geographical courses. We analysed the routes taken over land of 45 individual raptors tracked by satellite-based radiotelemetry: 25 peregrine falcons, Falco peregrinus, on autumn migration between North and South America, and seven honey buzzards, Pernis apivorus, and 13 ospreys, Pandion haliaetus, on autumn migration between Europe and Africa. Overall, migration directions showed a better agreement with constant geographical than constant geomagnetic courses. Tracks deviated significantly from constant geomagnetic courses, but were not significantly different from geographical courses. After we removed movements directed far from the mean direction, which may not be migratory movements, migration directions still showed a better agreement with constant geographical than constant geomagnetic courses, but the directions of honey buzzards and ospreys were not significantly different from constant geomagnetic courses either. That migration routes of raptors followed by satellite telemetry are in closer accordance with constant geographical compass courses than with constant geomagnetic compass courses may indicate that geographical (e.g. based on celestial cues) rather than magnetic compass mechanisms are of dominating importance for the birds' long-distance orientation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Animal Behaviour","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Thorup, K., Fuller, M.R., Alerstam, T., Hake, M., Kjellen, N., and Standberg, R., 2006, Are migrating raptors guided by a geomagnetic compass?: Animal Behaviour, v. 72, no. 4, p. 875-880.","productDescription":"p. 875-880","startPage":"875","endPage":"880","numberOfPages":"6","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134346,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"72","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abde4b07f02db6741cc","contributors":{"authors":[{"text":"Thorup, Kasper","contributorId":20707,"corporation":false,"usgs":true,"family":"Thorup","given":"Kasper","email":"","affiliations":[],"preferred":false,"id":324251,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fuller, Mark R. 0000-0001-7459-1729 mark_fuller@usgs.gov","orcid":"https://orcid.org/0000-0001-7459-1729","contributorId":2296,"corporation":false,"usgs":true,"family":"Fuller","given":"Mark","email":"mark_fuller@usgs.gov","middleInitial":"R.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":324249,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alerstam, T.","contributorId":15984,"corporation":false,"usgs":true,"family":"Alerstam","given":"T.","email":"","affiliations":[],"preferred":false,"id":324250,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hake, M.","contributorId":97871,"corporation":false,"usgs":true,"family":"Hake","given":"M.","email":"","affiliations":[],"preferred":false,"id":324254,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kjellen, N.","contributorId":42570,"corporation":false,"usgs":true,"family":"Kjellen","given":"N.","email":"","affiliations":[],"preferred":false,"id":324252,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Standberg, R.","contributorId":84722,"corporation":false,"usgs":true,"family":"Standberg","given":"R.","email":"","affiliations":[],"preferred":false,"id":324253,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":1016410,"text":"1016410 - 2006 - Phylogeography and genetic identification of the newly-discovered populations of torrent salamanders (Rhyacotriton cascade and R. variegatus) in the central Cascades (USA)","interactions":[],"lastModifiedDate":"2021-05-15T13:49:20.547791","indexId":"1016410","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1892,"text":"Herpetologica","active":true,"publicationSubtype":{"id":10}},"title":"Phylogeography and genetic identification of the newly-discovered populations of torrent salamanders (Rhyacotriton cascade and R. variegatus) in the central Cascades (USA)","docAbstract":"<p><span>Newly discovered populations of Rhyacotritonidae were investigated for taxonomic identity, hybridization, and sympatry. Species in the genus&nbsp;</span><span class=\"genus-species\">Rhyacotriton</span><span>&nbsp;have been historically difficult to identify using morphological characters. Mitochondrial (mtDNA) 16S ribosomal RNA sequences (491 bp) and allozymes (6 loci) were used to identify the distribution of populations occurring intermediate between the previously described ranges of&nbsp;</span><span class=\"genus-species\">R. variegatus</span><span>&nbsp;and&nbsp;</span><span class=\"genus-species\">R. cascadae</span><span>&nbsp;in the central Cascade Mountain region of Oregon. Allozyme and mitochondrial sequence data both indicated the presence of two distinct evolutionary lineages, with each lineage corresponding to the allopatric distribution of&nbsp;</span><span class=\"genus-species\">R. cascadae</span><span>&nbsp;and&nbsp;</span><span class=\"genus-species\">R. variegatus</span><span>. Results suggest the Willamette River acts as a phylogeographic barrier limiting the distribution of both species, although we cannot exclude the possibility that reproductive isolation also exists that reinforces species' distributions. This study extends the previously described geographical ranges of both&nbsp;</span><span class=\"genus-species\">R. cascadae</span><span>&nbsp;and&nbsp;</span><span class=\"genus-species\">R. variegatus</span><span>&nbsp;and defines an eastern range limit for&nbsp;</span><span class=\"genus-species\">R. variegatus</span><span>&nbsp;conservation efforts.</span></p>","language":"English","publisher":"BioOne","doi":"10.1655/04-52.1","usgsCitation":"Wagner, R., Miller, M.P., and Haig, S.M., 2006, Phylogeography and genetic identification of the newly-discovered populations of torrent salamanders (Rhyacotriton cascade and R. variegatus) in the central Cascades (USA): Herpetologica, v. 62, no. 1, p. 63-70, https://doi.org/10.1655/04-52.1.","productDescription":"8 p.","startPage":"63","endPage":"70","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":385652,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United  States","state":"Washington","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -123.72802734375,\n              46.3507193554773\n            ],\n            [\n              -122.772216796875,\n              46.3507193554773\n            ],\n            [\n              -122.772216796875,\n              47.148633511301426\n            ],\n            [\n              -123.72802734375,\n              47.148633511301426\n            ],\n            [\n              -123.72802734375,\n              46.3507193554773\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"62","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adbe4b07f02db685d17","contributors":{"authors":[{"text":"Wagner, R.S.","contributorId":57427,"corporation":false,"usgs":true,"family":"Wagner","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":324212,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, Mark P. 0000-0003-1045-1772 mpmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-1045-1772","contributorId":1967,"corporation":false,"usgs":true,"family":"Miller","given":"Mark","email":"mpmiller@usgs.gov","middleInitial":"P.","affiliations":[{"id":38131,"text":"WMA - Office of Planning and Programming","active":true,"usgs":true}],"preferred":true,"id":324211,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haig, Susan M. 0000-0002-6616-7589 susan_haig@usgs.gov","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":719,"corporation":false,"usgs":true,"family":"Haig","given":"Susan","email":"susan_haig@usgs.gov","middleInitial":"M.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":324210,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70194915,"text":"70194915 - 2006 - Evaluating hydraulic conductivity of desert soils at the Amargosa Desert Research Site near Beatty, Nevada","interactions":[],"lastModifiedDate":"2018-01-29T15:55:08","indexId":"70194915","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":21,"text":"Thesis"},"publicationSubtype":{"id":28,"text":"Thesis"},"title":"Evaluating hydraulic conductivity of desert soils at the Amargosa Desert Research Site near Beatty, Nevada","docAbstract":"<p>No abstract available.<br data-mce-bogus=\"1\"></p>","language":"English","publisher":"University of Nevada, Las Vegas","usgsCitation":"Wilson, J., 2006, Evaluating hydraulic conductivity of desert soils at the Amargosa Desert Research Site near Beatty, Nevada, 111 p.","productDescription":"111 p.","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"links":[{"id":350761,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","county":"Nye County","city":"Beatty","otherGeospatial":"Amargosa Desert Research Site","publicComments":"M.S. Thesis, University of Nevada, Las Vegas","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a7040d7e4b06e28e9cae4f9","contributors":{"authors":[{"text":"Wilson, J.W.","contributorId":24331,"corporation":false,"usgs":true,"family":"Wilson","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":726096,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70028975,"text":"70028975 - 2006 - Long-term dynamics of production, respiration, and net CO<sub>2</sub> exchange in two sagebrush-steppe ecosystems","interactions":[],"lastModifiedDate":"2017-04-11T15:53:45","indexId":"70028975","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3228,"text":"Rangeland Ecology and Management","onlineIssn":"1551-5028","printIssn":"1550-7424","active":true,"publicationSubtype":{"id":10}},"title":"Long-term dynamics of production, respiration, and net CO<sub>2</sub> exchange in two sagebrush-steppe ecosystems","docAbstract":"<p><span>We present a synthesis of long-term measurements of CO</span><sub>2</sub><span> exchange in 2 US Intermountain West sagebrush-steppe ecosystems. The locations near Burns, Oregon (1995–2001), and Dubois, Idaho (1996–2001), are part of the AgriFlux Network of the Agricultural Research Service, United States Department of Agriculture. Measurements of net ecosystem CO</span><sub>2</sub><span> exchange (</span><i>F</i><sub><i>c</i></sub><span>) during the growing season were continuously recorded at flux towers using the Bowen ratio-energy balance technique. Data were partitioned into gross primary productivity (</span><i>P</i><sub><i>g</i></sub><span>) and ecosystem respiration (</span><i>R</i><sub><i>e</i></sub><span>) using the light-response function method. Wintertime fluxes were measured during 1999/2000 and 2000/2001 and used to model fluxes in other winters. Comparison of daytime respiration derived from light-response analysis with nighttime tower measurements showed close correlation, with daytime respiration being on the average higher than nighttime respiration. Maxima of </span><i>P</i><sub><i>g</i></sub><span> and </span><i>R</i><sub><i>e</i></sub><span> at Burns were both 20&nbsp;g CO</span><sub>2</sub><span>·m</span><sup>−2</sup><span>·d</span><sup>−1</sup><span> in 1998. Maxima of </span><i>P</i><sub><i>g</i></sub><span> and </span><i>R</i><sub><i>e</i></sub><span> at Dubois were 37 and 35&nbsp;g CO</span><sub>2</sub><span>·m</span><sup>−2</sup><span>·d</span><sup>−1</sup><span>, respectively, in 1997. Mean annual gross primary production at Burns was 1 111 (range 475–1 715)&nbsp;g CO</span><sub>2</sub><span>·m</span><sup>−2</sup><span>·y</span><sup>−1</sup><span> or about 30% lower than that at Dubois (1 602, range 963–2 162&nbsp;g CO</span><sub>2</sub><span>·m</span><sup>−2</sup><span>·y</span><sup>−1</sup><span>). Across the years, both ecosystems were net sinks for atmospheric CO</span><sub>2</sub><span> with a mean net ecosystem CO</span><sub>2</sub><span> exchange of 82&nbsp;g CO</span><sub>2</sub><span>·m</span><sup>−2</sup><span>·y</span><sup>−1</sup><span> at Burns and 253&nbsp;g CO</span><sub>2</sub><span>·m</span><sup>−2</sup><span>·y</span><sup>−1</sup><span> at Dubois, but on a yearly basis either site could be a C sink or source, mostly depending on precipitation timing and amount. Total annual precipitation is not a good predictor of carbon sequestration across sites. Our results suggest that </span><i>F</i><sub><i>c</i></sub><span> should be partitioned into </span><i>P</i><sub><i>g</i></sub><span> and </span><i>R</i><sub><i>e</i></sub><span> components to allow prediction of seasonal and yearly dynamics of CO</span><sub>2</sub><span>fluxes.</span></p>","language":"English","publisher":"Elsevier","doi":"10.2111/05-198R1.1","issn":"15507424","usgsCitation":"Gilmanov, T., Svejcar, T., Johnson, D., Angell, R., Saliendra, N.Z., and Wylie, B., 2006, Long-term dynamics of production, respiration, and net CO<sub>2</sub> exchange in two sagebrush-steppe ecosystems: Rangeland Ecology and Management, v. 59, no. 6, p. 585-599, https://doi.org/10.2111/05-198R1.1.","productDescription":"15 p.","startPage":"585","endPage":"599","numberOfPages":"15","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":491482,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10150/643112","text":"External Repository"},{"id":209834,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2111/05-198R1.1"},{"id":236563,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"59","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4984e4b0c8380cd6869b","contributors":{"authors":[{"text":"Gilmanov, T.G.","contributorId":44716,"corporation":false,"usgs":true,"family":"Gilmanov","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":420806,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Svejcar, T.J.","contributorId":29087,"corporation":false,"usgs":true,"family":"Svejcar","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":420804,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, D.A.","contributorId":61370,"corporation":false,"usgs":true,"family":"Johnson","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":420807,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Angell, R.F.","contributorId":30019,"corporation":false,"usgs":true,"family":"Angell","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":420805,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Saliendra, Nicanor Z.","contributorId":16623,"corporation":false,"usgs":true,"family":"Saliendra","given":"Nicanor","email":"","middleInitial":"Z.","affiliations":[],"preferred":false,"id":420802,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wylie, B.K. 0000-0002-7374-1083","orcid":"https://orcid.org/0000-0002-7374-1083","contributorId":24877,"corporation":false,"usgs":true,"family":"Wylie","given":"B.K.","affiliations":[],"preferred":false,"id":420803,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":1016488,"text":"1016488 - 2006 - Long-term golden eagle studies in Denali National Park and Preserve","interactions":[],"lastModifiedDate":"2013-03-17T19:59:02","indexId":"1016488","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":691,"text":"Alaska Park Science","printIssn":"1545- 496","active":true,"publicationSubtype":{"id":10}},"title":"Long-term golden eagle studies in Denali National Park and Preserve","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Alaska Park Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"McIntyre, C.L., Steenhof, K., Kochert, M.N., and Collopy, M.W., 2006, Long-term golden eagle studies in Denali National Park and Preserve: Alaska Park Science, v. 5, no. 1, p. 42-45.","productDescription":"p. 42-45","startPage":"42","endPage":"45","numberOfPages":"4","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":133286,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269524,"type":{"id":11,"text":"Document"},"url":"https://www.nps.gov/akso/nature/science/ak_park_science/PDF/2006Vol5-1/Golden-Eagles.pdf"}],"volume":"5","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6de4b07f02db63ee5e","contributors":{"authors":[{"text":"McIntyre, Carol L.","contributorId":94642,"corporation":false,"usgs":true,"family":"McIntyre","given":"Carol","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":324309,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Steenhof, Karen karen_steenhof@usgs.gov","contributorId":30585,"corporation":false,"usgs":true,"family":"Steenhof","given":"Karen","email":"karen_steenhof@usgs.gov","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":324307,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kochert, Michael N. 0000-0002-4380-3298 mkochert@usgs.gov","orcid":"https://orcid.org/0000-0002-4380-3298","contributorId":3037,"corporation":false,"usgs":true,"family":"Kochert","given":"Michael","email":"mkochert@usgs.gov","middleInitial":"N.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":324306,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Collopy, Michael W.","contributorId":77890,"corporation":false,"usgs":false,"family":"Collopy","given":"Michael","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":324308,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1016399,"text":"1016399 - 2006 - Importance of wetland landscape structure to shorebirds wintering in an agricultural valley","interactions":[],"lastModifiedDate":"2012-02-02T00:04:50","indexId":"1016399","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2602,"text":"Landscape Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Importance of wetland landscape structure to shorebirds wintering in an agricultural valley","docAbstract":"Only recently has the influence of landscape structure on habitat use been a research focus in wetland systems. During non-breeding periods when food can be locally limited, wetland spatial pattern across a landscape may be of great importance in determining wetland use. We studied the influence of landscape structure on abundances of wintering Dunlin (Calidris alpina) and Killdeer (Charadrius vociferus) observed on wetlands in the agricultural Willamette Valley of Oregon, USA, during two winters (1999a??2000, 2000a??2001) of differing rainfall. We examined (1) shorebird use within a sample of 100 km2 regions differing in landscape structure (hectares of shorebird habitat [wet, unvegetated]) and (2) use of sites differing in landscape context (area of shorebird habitat within a species-defined radius). For use of sites, we also assessed the influence of two local characteristics: percent of soil exposed and area of wet habitat. We analyzed data using linear regression and information-theoretic modeling. During the dry winter (2000a??2001), Dunlin were attracted to regions with more wetland habitat and their abundances at sites increased with greater area of shorebird habitat within both the site and the surrounding landscape. In contrast, Dunlin abundances at sites were related to availability of habitat at only a local scale during the wet winter (1999a??2000). Regional habitat availability was of little importance in predicting Killdeer distributions, and Killdeer site use appeared unrelated to habitat distributions at both landscape and local scales. Results suggest prioritizing sites for conservation that are located in areas with high wetland coverage.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Landscape Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Taft, O.W., and Haig, S.M., 2006, Importance of wetland landscape structure to shorebirds wintering in an agricultural valley: Landscape Ecology, v. 21, no. 2, p. 169-184.","productDescription":"p. 169-184","startPage":"169","endPage":"184","numberOfPages":"16","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134357,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fde4b07f02db5f5fdd","contributors":{"authors":[{"text":"Taft, Oriane W.","contributorId":34883,"corporation":false,"usgs":true,"family":"Taft","given":"Oriane","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":324201,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haig, Susan M. 0000-0002-6616-7589 susan_haig@usgs.gov","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":719,"corporation":false,"usgs":true,"family":"Haig","given":"Susan","email":"susan_haig@usgs.gov","middleInitial":"M.","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":324200,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}